[PATCH 1/2] libata: move ata_altstatus() to pio data xfer functions

[Albert Lee <albertcc@tw.ibm.com>]

Patch 1/2:
 Move ata_altstatus() out from ata_hsm_move() to the pio data xfer functions
like ata_pio_sectors() and atapi_pio_bytes() where it makes more sense.

Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
---
atapi_send_cdb() already calls ata_altstatus() inside.
This patch makes ata_pio_sectors() and atapi_pio_bytes() do the same.

diff -Nrup 00_libata-dev/drivers/ata/libata-core.c 01_move_altstatus/drivers/ata/libata-core.c
--- 00_libata-dev/drivers/ata/libata-core.c	2007-07-04 11:26:30.000000000 +0800
+++ 01_move_altstatus/drivers/ata/libata-core.c	2007-07-04 11:32:36.000000000 +0800
@@ -4524,6 +4524,8 @@ static void ata_pio_sectors(struct ata_q
 			ata_pio_sector(qc);
 	} else
 		ata_pio_sector(qc);
+
+	ata_altstatus(ap); /* flush */
 }
 
 /**
@@ -4698,6 +4700,7 @@ static void atapi_pio_bytes(struct ata_q
 	VPRINTK("ata%u: xfering %d bytes\n", ap->print_id, bytes);
 
 	__atapi_pio_bytes(qc, bytes);
+	ata_altstatus(ap); /* flush */
 
 	return;
 
@@ -4869,7 +4872,6 @@ fsm_start:
 			 */
 			ap->hsm_task_state = HSM_ST;
 			ata_pio_sectors(qc);
-			ata_altstatus(ap); /* flush */
 		} else
 			/* send CDB */
 			atapi_send_cdb(ap, qc);
@@ -4950,7 +4952,6 @@ fsm_start:
 
 				if (!(qc->tf.flags & ATA_TFLAG_WRITE)) {
 					ata_pio_sectors(qc);
-					ata_altstatus(ap);
 					status = ata_wait_idle(ap);
 				}
 
@@ -4970,13 +4971,11 @@ fsm_start:
 			if (ap->hsm_task_state == HSM_ST_LAST &&
 			    (!(qc->tf.flags & ATA_TFLAG_WRITE))) {
 				/* all data read */
-				ata_altstatus(ap);
 				status = ata_wait_idle(ap);
 				goto fsm_start;
 			}
 		}
 
-		ata_altstatus(ap); /* flush */
 		poll_next = 1;
 		break;